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- 1. Drag and Drop
(a) sends out signals to co-ordinate how the processor works and instructions are decoded here.
Control Unit (CU)Central Processing Unit (CPU)Arithmetic Logic Unit (ALU)Current Instruction Register (CIR) - 2. Drop Down
(a) carries out the calculations and logical decisions. The results of its calculations are stored in the accumulator.
Control Unit (CU)Arithmetic Logic Unit (ALU)Accumulator (ACC)Memory Data Register (MDR) - 3. Multiple ChoiceHolds the address of the next instruction to be executed. It gets incremented with each cycle of the fetch-decode-execute cycle.Memory Address Register (MAR)Current Instruction Register (CIR)Program Counter (PC)Accumulator (ACC)
- 4. Multiple ChoiceStores the data that has been fetched from or stored in memory.Memory Data Register (MDR)Data BusMemory Address Register (MAR)Current Instruction Register (CIR)
- 5. Multiple ChoiceStores the address of the data or instructions that are to be fetched from or sent to.Address BusMemory Address Register (MAR)Memory Data Register (MDR)Data Bus
- 6. Drag and Drop
The ALU makes calculations and stores the results in the (a) .
Memory Data Register (MDR)Control Unit (CU)Accumulator (ACC)Program Counter (PC) - 7. Multiple ChoiceStores the most recently fetched instruction, waiting to be decoded.Program Counter (PC)Memory Data Register (MDR)Control Unit (CU)Current Instruction Register (CIR)
- 8. Multiple ChoiceUsed to transmit data between areas of the processor.Data BusAddress BusMemory Data Register (MDR)Control Unit (CU)
- 9. Multiple ChoiceUsed to carry the address to which the data is being transmitted.Control BusAddress BusMemory Address Register (MAR)Memory Data Register (MDR)
- 10. Fill in the Blank
_____ is used to send control signals from control unit to other parts of the processor
- Answer choicesTagsAnswer choicesTags